#include <bits/stdc++.h>
using namespace std;
int main ()
{
    vector<int> myvector = {10,20,30,40,50};
    cout << "myvector contains:";
    for (auto it = myvector.cbegin(); it != myvector.cend(); ++it)
        cout << ' ' << *it;
        cout << '\n';
    return 0;
}
